Actually it wasn't that much work to create the sheet, copy and paste the graph and just download the complete list of District Office dates that are in a tabular form off of most lawyers websites so it's pretty easy.
I will update this monthly, the latest graphs are in the spreadsheet attached to this post.
What this means for the person that had the question, these are just graphical representations of the current processing dates for N-400 as reported by each individual district office, the blue bars represent how many "days" it is taking them to process on average the cases they have, according to what they report. The burgundy bar represents the average days it is taking for all the district offices averaged out. Each month you can see the progress or lack thereof of your district office.
As someone else pointed out, this is at best just a general guide and may or may not be too accurate as they are only the dates the district offices are reporting and they may have no bearing in reality. However, I think the benefit is seeing the trend over time and you can use this as a rough approximation.
For those that want them in other formats, sorry, this is what i've produced, it seems most people have no trouble with reading the excel spreadsheets and graphs. If however you wish to see your numbers in a table, use this link to go to the site where I download the input numbers for the graphs
https://www.visapro.com/INS-Processing-Times.asp
Here's the currents months graphs.....enjoy....